Huge wooden aeroplane propeller, 1st half of the 20th century, solid wood with metal mounts at the

Huge wooden aeroplane propeller, 1st half of the 20th century, solid wood with metal mounts at the hub, the wood with various brand marks ''Stand 1300'', ''Geprüft FLZ'' (?), as well as various numbers, minimal crazing, l. 272 cm
Riesiger Flugzeug-Propeller aus Holz, 1. H. 20. Jh., massives Holz mit Metallmontierungen an der Nabe, das Holz mit versch. Brandstempeln ''Stand 1300'', ''Geprüft FLZ'' (?), sowie diversen Nummern, min. Krazter, L. 272 cm